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Fair Value Measurements - Carrying Amounts and Fair Values of Financial Instruments (Parenthetical) (Detail) (Senior Subordinated Notes) | Mar. 31, 2015 | Dec. 31, 2014
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6.75% Senior Subordinated Notes Due 2020 |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Interest rate on senior subordinated notes | 6.75%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = rrc_SixPointSevenFivePercentTwoThousandTwentyMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorSubordinatedNotesMember | 6.75%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = rrc_SixPointSevenFivePercentTwoThousandTwentyMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorSubordinatedNotesMember
5.75% Senior Subordinated Notes Due 2021 |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Interest rate on senior subordinated notes | 5.75%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = rrc_FivePointSevenFivePercentTwoThousandTwentyOneMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorSubordinatedNotesMember | 5.75%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = rrc_FivePointSevenFivePercentTwoThousandTwentyOneMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorSubordinatedNotesMember
5.00% Senior Subordinated Notes Due 2022 |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Interest rate on senior subordinated notes | 5.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = rrc_FivePercentTwoThousandTwentyTwoMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorSubordinatedNotesMember | 5.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = rrc_FivePercentTwoThousandTwentyTwoMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorSubordinatedNotesMember
5.00% Senior Subordinated Notes Due 2023 |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Interest rate on senior subordinated notes | 5.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = rrc_FivePercentTwoThousandTwentyThreeMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorSubordinatedNotesMember | 5.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = rrc_FivePercentTwoThousandTwentyThreeMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorSubordinatedNotesMember

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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Balance Type: | na
Period Type: | instant

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- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration